Spirax Sarco MSC-125, Installation And Maintenance Instructions Manual

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IM-P117-39 CMGT Issue 1 7
0
0 10 20
19.6
30 40 50
51
-46
100
200
300
400
0
200
400
600
100 200 300 400 500 600 700
2.3 Pressure / temperature limits
The product must not be used in this region.
A
-
B
Flanged ASME Class 300, screwed and socket weld.
A - C Flanged ASME Class 150.
Body design conditions ASME B16.5 Class 300
PMA Maximum allowable pressure 51 bar g @ 38 °C 740 psi g @ 100 °F
TMA Maximum allowable temperature 425 °C @ 28 bar g 797 °F @ 406 psi g
Minimum allowable temperature -46 °C -50 °F
PMO
Maximum
operating
pressure for
saturated steam
service
ASME 150 14 bar g 203 psi g
ASME 300, SW, NPT 602 psi g
TMO
Maximum
operating
temperature
ASME 150 425 °C @ 5.5 bar g 797 °F @ 80 psi g
ASME 300,
SW, NPT
425 °C @ 28 bar g 797 °F @ 406 psi g
Minimum operating temperature 0 °C 32 °F
Note:
For lower operating temperatures consult Spirax Sarco
Designed for a maximum cold hydraulic test pressure of: 76 bar g 1 102 psi g
2.4 Kv values
All sizes Kv 1.8
For conversion:
Cv (UK) = Kv x 0.963
Cv (US) = Kv x 1.156
The Kv stated is for each valve rather than the complete manifold.
Pressure bar g
Te
mp
er
at
ure
°C
C B
A
Steam
saturation
curve
Pressure psi g
Te
mp
era
tu
re
°F